Before proceeding, you must exercise extreme caution. A USB controller chip that gets uncomfortably hot can damage your motherboard.
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: This indicates a firmware state error. The controller is trapped in a bootloop or boot-fail state, running on safe-mode ROM code rather than the operational firmware. alcor micro unknown fa00 fw fa04 hot
This is a generic Alcor failure code indicating that the controller cannot initialize the NAND flash memory.
Click Start (A) to initiate the flashing sequence. The tool will format the device, install fresh matching firmware, clear the fail-safe loop, and fix the device descriptor error. Troubleshooting Failure Modes
: Unzip the downloaded AlcorMP package. Navigate to the folder and run the executable file ( AlcorMP.exe ). Before proceeding, you must exercise extreme caution
: The manufacturer of the USB flash memory controller chip inside your drive.
Identify the larger rectangular chip (the NAND flash), not the smaller square Alcor controller chip.
Carefully pry open the plastic housing of the USB drive. This link or copies made by others cannot be deleted
Gently crack open the plastic casing of the USB drive to expose the circuit board.
Alcor Micro is a major manufacturer of USB flash drive controllers. When a drive is functioning correctly, it reports its real capacity and brand name. However, when the firmware becomes corrupted—due to improper ejection, power surges, or NAND wear—it enters a or a generic state.
Warning: Opening the enclosure can void any active product warranty.
If you use a USB stick to store movies or music for a car stereo, TV, or projector, a corrupted firmware (like FA00) renders your portable media player useless.
If you try to run the repair process and it still does not work, consult the table below to fix common mass production snags: Error Sign / Symptom Likely Cause Recommended Action Incompatible tool version.